<template>
  <div class="login-container">
    <!-- element-ui表单组件  el-form中包裹了多个 表单项 el-form-item   el-form-item  可以书写任意表单元素
      model是表单关联的对象
      rules规则表单的规则: 是一个对象 ,每个字段都可定义规则, 也可以自定义校验规则
      表单的校验规则生效: 前提1 el-form 绑定:model   前提2: 绑定rules:规则 前提3 每一个form-item加prop属性
    -->
    <el-form
      ref="loginForm"
      :model="loginForm"
      :rules="loginRules"
      class="login-form"
      autocomplete="off"
      label-position="left"
    >
      <div class="title-container">
        <!-- 登录标题 -->
        <h3 class="title">
          <img src="@/assets/common/login-logo.png" alt="">
        </h3>
      </div>

      <el-form-item prop="mobile">
        <span class="svg-container">
          <svg-icon icon-class="user" />
        </span>
        <el-input
          ref="mobile"
          v-model="loginForm.mobile"
          placeholder="请输入手机号"
          name="mobile"
          type="text"
          tabindex="1"
          auto-complete="on"
        />
      </el-form-item>

      <el-form-item prop="password">
        <span class="svg-container">
          <svg-icon icon-class="password" />
        </span>
        <el-input
          :key="passwordType"
          ref="password"
          v-model.trim="loginForm.password"
          :type="passwordType"
          placeholder="请输入密码"
          name="password"
          tabindex="2"
          auto-complete="on"
          @keyup.enter.native="handleLogin"
        />
        <span class="show-pwd" @click="showPwd">
          <svg-icon :icon-class="passwordType === 'password' ? 'eye' : 'eye-open'" />
        </span>
      </el-form-item>
      <!-- .prevent 修饰符是阻止默认行为的
        .native修饰符,如果一个组件内没有对事件绑定, 需要添加.navtive修饰符将事件挂载给组件内的根节点
       -->
      <el-button
        class="loginBtn"
        :loading="loading"
        type="primary"
        style="width:100%;margin-bottom:30px;"
        @click.native.prevent="handleLogin"
      >登录</el-button>
      <div class="tips">
        <span style="margin-right:20px;">管理员: 13800000002</span>
        <span> 密码: 123456</span>
        <!-- <span> {{ $store.state.user.token }}</span>
        <span> {{ $store.getters.token }}</span> -->
      </div>
    </el-form>
  </div>
</template>

<script>
import { validMobile } from '@/utils/validate'

export default {
  name: 'Login',
  data() {
    const validateMobile = (rule, value, callback) => {
      if (!validMobile(value)) {
        callback(new Error('请输入合法11位手机号')) // 校验失败
      } else {
        callback() // 校验通过
      }
    }
    return {
      loginForm: {
        mobile: '13800000002',
        password: '123456'
      },
      // 校验规则
      loginRules: {
        mobile: [
          { required: true, message: '手机号不能为空', trigger: ['blur', 'change'] },
          // validator 自定义校验规则
          { required: true, validator: validateMobile, trigger: ['blur', 'change'] }
        ],
        // 6-18位 只要6-18位
        password: [
          { required: true, message: '密码不能为空', trigger: ['blur', 'change'] },
          { min: 6, max: 18, message: '密码只能在6-18位之间', trigger: ['blur', 'change'] }
        ]
      },
      loading: false,
      passwordType: 'password',
      redirect: undefined
    }
  },
  watch: {
    $route: {
      handler: function(route) {
        this.redirect = route.query && route.query.redirect
      },
      immediate: true
    }
  },
  methods: {
    showPwd() {
      if (this.passwordType === 'password') {
        this.passwordType = ''
      } else {
        this.passwordType = 'password'
      }
      this.$nextTick(() => {
        this.$refs.password.focus()
      })
    },
    handleLogin() {
      // 表单提交前的预校验
      this.$refs.loginForm.validate(async valid => {
        // valid是一个布尔值, 如果所有表单元素都通过校验为true,否则为false
        if (valid) {
          // 开启loading
          this.loading = true
          const res = await this.$store.dispatch('user/login', this.loginForm)
          // console.log(res)
          if (res.success) {
            this.$message.success('登录成功')
            this.$router.push('/')
          }
          this.loading = false // 关闭loading
        } else {
          console.log('error submit!!')
          return false
        }
      })
    }
  }
}
</script>

<style lang="scss">
/* 修复input 背景不协调 和光标变色 */
/* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */

$bg:#283443;
$light_gray:#407ffe; // 修改输入框字体颜色
$cursor: #fff;

@supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
  .login-container .el-input input {
    color: $cursor;
  }
}

/* reset element-ui css */
.login-container {
  background-image: url('~@/assets/common/login.jpg'); // 设置背景图片
  background-position: center; // 将图片位置设置为充满整个屏幕
  .el-input {
    display: inline-block;
    height: 47px;
    width: 85%;

    input {
      background: transparent;
      border: 0px;
      -webkit-appearance: none;
      border-radius: 0px;
      padding: 12px 5px 12px 15px;
      color: $light_gray;
      height: 47px;
      caret-color: $cursor;

      &:-webkit-autofill {
        box-shadow: 0 0 0px 1000px $bg inset !important;
        -webkit-text-fill-color: $cursor !important;
      }
    }
  }

  .el-form-item {
    border: 1px solid rgba(255, 255, 255, 0.1);
     background: rgba(255, 255, 255, 0.9); // 输入登录表单的背景色
    border-radius: 5px;
    color: #454545;
  }
}
</style>

<style lang="scss" scoped>
$bg:#2d3a4b;
$dark_gray:#889aa4;
$light_gray:#eee;

.login-container {
  min-height: 100%;
  width: 100%;
  background-color: $bg;
  overflow: hidden;

  .login-form {
    position: relative;
    width: 520px;
    max-width: 100%;
    padding: 160px 35px 0;
    margin: 0 auto;
    overflow: hidden;
  }

  .tips {
    font-size: 14px;
    color: #fff;
    margin-bottom: 10px;

    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }

  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
  }

  .title-container {
    position: relative;

    .title {
      font-size: 26px;
      color: $light_gray;
      margin: 0px auto 40px auto;
      text-align: center;
      font-weight: bold;
    }
  }

  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }
  ::v-deep.el-form-item__error {
    color: #fff;
    font-size: 14px;
  }
  .loginBtn {
    background: #407ffe;
    height: 64px;
    line-height: 32px;
    font-size: 24px;
  }
}
</style>
